Move wifi setup script from main to late_start

Bug: 17358965
Change-Id: Ia4d2d99228cdf4a253c6ce06db7b621c618634cb
diff --git a/init.mako.rc b/init.mako.rc
index f84c0a9..73edc13 100644
--- a/init.mako.rc
+++ b/init.mako.rc
@@ -395,7 +395,7 @@
     group camera system inet input
 
 service wcnss_init /system/bin/sh /system/etc/init.mako.wifi.sh
-    class main
+    class late_start
     user system
     group system wifi
     seclabel u:r:conn_init:s0